<template>
    <div>
        <div class="search">
            <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
        </div>
        <div v-show="keyword" class="search-content" ref="search">
            <ul>
                <li class="search-item border-bottom" 
                v-for="item of list" 
                :key="item.id"
                @click="handleClickCity(item.name)"
                >{{item.name}}</li>
                <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
            </ul>
        </div>
    </div>
</template>
<script>
import Bscroll from 'better-scroll'
export default {
    name:'CitySearch',
    props:{
        cities:Object
    },
    data(){
        return{
            keyword:'',
            list:[],
            timer:null
        }
    },
    computed:{
       hasNoData(){
         return !this.list.length
       }
    },
    watch:{
        keyword(){
            if(this.timer){
                clearTimeout(this.timer)
            }
            if(!this.keyword){
                this.list=[]
                return 
            }
            this.timer = setTimeout(()=>{
                const result = []
                console.log(this.cities)
                for (let i in this.cities){
                    console.log(i)
                    this.cities[i].forEach((value)=>{
                        if(value.spell.indexOf(this.keyword)> -1
                          ||value.name.indexOf(this.keyword)> -1){
                              result.push(value)
                          }
                    })
                }
                this.list = result
            },100)
        }
    },
    methods: {
        handleClickCity(city){
        this.$store.commit("changeCity",city) 
            // this.changeCity(city)
            this.$router.push('/')
        }
    },
    mounted(){
        this.scroll = new Bscroll(this.$refs.search)//传dom元素
    }
  
}
</script>
<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .search
        height:.72rem
        padding:.1rem
        background:$bgColor
        .search-input
            box-sizing:border-box
            width:100%
            height:.62rem
            height:0.62rem
            padding 0.1rem
            text-align:center
            border-radius:.06rem
            color:#666
    .search-content
        z-index:1 
        overflow: hidden
        position: absolute
        top:1.58rem
        left:0
        right:0
        bottom:0
        background:#eee
        .search-item
            line-height:.62rem
            padding-left:.2rem
            background:#fff
            color:#666
</style>